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Numerical simulation of flame acceleration and deflagration to detonation transition in hydrogen-air mixture

Heidari, Ali and Wen, Jennifer X. (2014) Numerical simulation of flame acceleration and deflagration to detonation transition in hydrogen-air mixture. International Journal of Hydrogen Energy, 39(36), pp. 21317-21327. ISSN (print) 0360-3199

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Abstract

A numerical approach has been developed to simulate flame acceleration and deflagration to detonation transition in hydrogen-air mixture. Fully compressible, multidimensional, transient, reactive Navier–Stokes equations are solved with a chemical reaction mechanism which is tuned to simulate different stages of flame propagation and acceleration from a laminar flame to a turbulent flame and subsequent transition from deflagration to detonation. Since the numerical approach must simulate both deflagrations and detonations correctly, it is initially tested to verify the accuracy of the predicted flame temperature and velocity as well as detonation pressure, velocity and cell size. The model is then used to simulate flame acceleration (FA) and transition from deflagration to detonation (DDT) in a 2-D rectangular channel with 0.08 m height and 2 m length which is filled with obstacles to reproduce the experimental results of Teodorczyk et al.

Item Type: Article
Research Area: Mechanical, aeronautical and manufacturing engineering
Faculty, School or Research Centre: Faculty of Engineering (until 2011) > Centre for Fire and Explosion Studies
Faculty of Science, Engineering and Computing
Faculty of Science, Engineering and Computing > School of Mechanical and Automotive Engineering
Depositing User: Ali Heidari
Date Deposited: 01 Dec 2014 13:24
Last Modified: 01 Dec 2014 13:24
URI: http://eprints.kingston.ac.uk/id/eprint/29485

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